I am running 1215LPJ 3 Blade Prop on a 20’ speed boat with a blown 350 Chevy and have too many revs relative to the speed of the boat. I have a heap of torque so can afford to sacrifice some. I have already changed from a 1214LPJ to my current prop. What can I do to get my rpm’s down?

Submitted by: GREG

Answer

Every inch of prop pitch increase will decrease the engine speed by 200 rpm. In some cases you will need to go to a specialty racing type propeller, or have the propeller cupped to achieve the correct rpm for your engine.

I have an 09’ Honda BF40 outboard on a Carolina Skiff DLX 178. I have a 12.1 X 9 prop. The prop is great with just 2 people onboard. When I have more than 2 the boat drags. Can you recommend a different prop to help pull more weight on my boat?